Metal-bender.



V. J". MAYO.

METAL BENDER.

APPLICATION FILZBDAPE. 1909.

Patented July 2, 31912.

9 XHEETSSHBEI 1 mu w l1 TTUBNE V8 V. J. MAYO METAL BENDER.

APPMGATION FILED APR. 23: 1909 m m m If: m m n: a: 3

VIBGINIUS J. MAYO, 01 NEW HAVEN, CONNECTICUT.

IVIETALJBENDER,

il eat ,it so To all whom it may concern:

Be. it known that l, Vinomms J". MAYO, a citizen of the United. States, and a resident of New Haven, in the county of New llaven and State oi Connecticut, have invented a new and improved .l't lietal-Bender, of which the following; is a lull, clear, and. exactdescription. p

This invention relates to a device adapted to bend plaited strips oi metal, to term sections of radiators to be used in cooling the water used in the jacket of an internal coinbustion engine on motor vehicles or the like. These. strips of metal may be expanded at;

' the ends or not, accordiiw to the type of ra P) diator to .be; made. 7

The object of the invei'ition is to provide a. device which will be simple, quick and accurate in its operation, and which will be strong; and durable and have the least number oi parts consistent with good workmanship.

Generally speaking, the invention consists in a support, means connected to said sup port to perform an initial bending operation, and means adapted to perform a. secondary bending operation, the Whole so acting as to form a plaited strip of metal into a section, with the plaits extending in opposite directions and acting as spacing members for the strip.

The invention further consists in the con struction and combination of parts, to be more fully described hereinafter and particularly set forth .in the claims.

Reference is to be, had to the accom ')anying drawings forming a part of this speciti cation, in which similar characters of refer ence indicate corresponding parts inall the views, and in which-- Figure 1 is a plan View; Fig. 2 is a, Vertical trout end View, partly in section; Fig. 3 is a vertical longitudinal section, showing the device with aplaited strip of metal therein before the first bending operation; Fig. 4- is a view similar to Fig. 3, showing the device after the first bending operation has been completed, the section lines being omitted from the strip of metal for the sake of clearness; Fig. 5 is also a view similar t Figs. 3 and 4c, showing the device at the end oi the bending operation, the section lines on the plaitod strip of nietalbeing omitted for the sake of clearness; Fig. 6 1s a plan view of the die-rod; Fig. 7 is a transverse section through a plaited strip of metal hav- Specification of Letters Patent.

Application filed April 23, 190B.

Patented July '2, 19.1 2-

Serial No. 491,703.

in o, otl'set ends; and, 8 a transverse section of a plaited sheet of metal without ollset ends.

Referring more particularly to the separate parts of the device, 1 indicates a bedplat-e which may be ot any suitable forni and-nmterial and is adapted to be attached to a suitable support, as indicated in dotted lines in. Fig. 3, by any suitable fastening means, such as screws There is pf'ovided at each side of the belt Plate 1, near the front end thereol, a pair of supgiiorts 3, which may be secured thereto in any suitable manner, and have suitable openings tl'ierein, which form bearings for suitable trunnions 4, which are adapted to be adjustably secured in said openings by any suitable means, such as scts'crews trnnnions {t hm e at one cndthereoi a slot 4", which adapted to be engaged by any suit--- able means, such as a screw-(lriven-to turn the same, to adjust it. relative to the bedplate, and at the other end, they have an enlarged portion 7, on each of which is eccentricalhv located a suitable shaft 8. These shafts 8 form a pivot for a metal-bender 9, which may be of any suitable torn] and n1aterial, and is adapted to be operated by any suitable means, such as a handle 10, secured in. any well-known manner to the bender 9.

Suitably secured to the bender 9, on the upuer surface there are provided a pair oi members 11 which have at one end thereof suitable openings, to form bearings for pins 12, on whicl'i is rotatably supported in any well known manner a metal bender 13,. which 1s adapted to be operated by any suitable motive means, such as a handle 14, which is secured thereto in any well-known manner.

For the purpose of bending a plaited which is adapted to enact with the metal benders 9 and 13, and may be of any suitable ieriu and material, but preferably consists in a s uare rod, having one of its corners out o and curved intermediate its ends, and also havinga notch 16 in one of: its sides, which is adapted to co-act with a. locking member 17 on one of a pair of retaining hooks 18, which are secured in any well-known manner to the bed-plate 1.

in order to guide a plaitod strip of metal strip of metal there is provided a die 15,.

"19 on the bed-plate 1, there is provided a suitable guide 20, which may be of any suitable form andmaterial, but preferably eonsists in an angle-iron having a number of slots 21 therein, through which it is adapted to be adjustably secured to the bed-plate 1 by any suitable means, such as screws 22. The reason for this adjustment is to provide for different widths of strips of metal that the device may be called upon to bend. The plaited strip'of metal 19 is shownwith olfset ends in the, majority of the views, and there is provided in the bed-plate 1 and the bender 13, a pair of slots .23 and 24, which are adapted to allow for this ofiset port-ion in the operation of the device. The device is, however, justas well adapted to bend a plaited strip the ends of WlllCll are not expanded, as indicated in Fig. 8.

In the operation of the device, the plaited strip of metal is placed on the bed-plate with the plaits extending upwardly and the die-rod. 15 placed in the position shown in Fig. 3, where it is locked by cans of the groove 16 and the lock 17. he pair of benders9 and 13 are then lifted'to the position shown in Fig. 4, by any suitable motive means, such as the handle 10, and this operation bends the strip. of metal between the die-rod l5 and the bender 9, so that the portion between a pair of plates is bent back onto one of the plates. The second stage of the operation consists in revolving the bender 13 about its pivot to the position indicated in Fig. 5, by which operation the strip of metal is bent at substantially rightangles to the position shown in Fig. 4, and forms, by means of the'next plait a parallelepiped around the die-rod 15, the upper right-hand corner of which is cut away to allow the plait to slide by more easily. The benders 9 and 13 are then allowed to assume their original position, as

shown in Fig. 3 and the strip of metal, to-

gether with the ie-rod 15, removed from the bedplate, and the die-rod slipped out of-the end. The plaited strip of metal is thus bent at one end and intermediate its ends, so as to form a radiator section, the plaits on the parallel portions of which extend in opposite directions, acting as spacing means between the body portions of the strip, ithe plaits on one portion ofthe strip being preferably located midway between the plaits on the other parallel portion of the strip. The bender 9 is'eceentrically and ad justably pivoted to the bedplate 1, so that it can be adjusted to a nicety, so as to co-act exactly with the die-rod 15 in the operation of bending the metal.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent 1. In a device of the class .described, the combination with a bed-plate, of a bender, means for adjustably pivoting said bender to said 'bedlate, an auxiliary bender pivot ed to said -rst-mentioned bender, and a rean auxiliary bender I mentioned bender.

movable die having a plurality of rightangle edges adapted to co-act with said benders.

2. In a device of the class described, the combination with a bed-plate, of a bender eccentrically pivoted to said bed-plate, and

3. In a device of the class described, the combination with a bed-plate, of a bender eccentrically pivoted to said bed-plate, an auxiliary bender pivoted to said firstmenpivoted to said first- I tioned bender, and a die adapted to co-act with said benders.

4. In a device of the class described, the combination with a bed-plate, of an adjustable trunnion, means for securing said trunnion to said bed-plate in any ad usted position, a shaft eccentrically located on said trunnion, and a bender pivotally hungat one end to said shaft. 7

5. In a device of the class described, the combination with a bed-plate, of an adjust-- able trunnion, means for securing said trunnion to the bed-plate in any ad usted position, a shaft eccentrically located on said trunnion, a bender pivoted to said shaft, and an auxiliary bender pivoted to said firstmentioned bender. 1

6. In a device of the class described, the combination with a bed-plate, of a pair of adjustable trunnions, means for securing said trunnions to said bed-plate in an adusted position, a pair of shafts eccentrlcally secured one on each of said trunnions, and a bender pivotally hung at one end to said shafts.

7. In a device of the class described, the

combination with a bed-plate, of a pair of combination witha bed-plate, of'a removable die-rod for said bed-plate, means for locking said die-rod in position, a bender pivoted to said bed-plate, and an auxiliary bender connected with said first-mentioned bender, said benders being adapted to co-act with said die-rod.

10. In a device of the class described, the.

combination with a bed-plate, of a removable die-rod having a groove in one end thereof and having one of its corners beveled oil, means on said bed-plate adapted to hold said die-rod in position, means on said lastmentioned means adapted to engage said groove in said die-rod to lock said die-rod in position, a bender connected to said bedplate, and an auxiliary bender connected to said last-mentioned bender.

' 11. In a device of the class described, the combination with a bed-plate having a pair of grooves therein, of a guide adjustably secured to said b ed-plate, a bender connected to said bed-plate, means for adjustably pivoting said bender to said bed-plate, an auxiliary bender having grooves therein, pivoted'to said first-mentioned bender, a dierod adapted to co-act with said benders,-and means for operating said bcnders.

12. In a device of the class described, the combination with a bed-plate, having a pair of grooves therein, of a guide for said bed plate, means for adjustably securing said guide to said bed-plate, a bender for said bed-plate, n'feans for adjustably pivoting said bender to said bed-plate, an auxiliary bender pivoted to said first-mentioned bender and having a pair of grooves therein extending in alineinent with said grooves in said bed-plate, a die-rod connected to said bed-plate and adaptedto co-act ith said 

